General objective of this lecture is to present on Mammals. Mammals are found to exist all over the world in all different climates. Mammals such as chimpanzees and elephants dwell in tropical regions. Arctic foxes, polar bears and many other mammals make their home near the North Pole. Camels and coyotes live in deserts. Some mammals even live in the sea such as dolphins, seals and whales. One group of mammals, the bats, can fly.